Device for measuring an electric current
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United States of America Patent
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Apr 1, 2008
Grant Date -
Sep 23, 2004
app pub date -
Jan 7, 2004
filing date -
Jan 14, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to a device 1 for measuring an electric current and is particularly well adapted to electricity counters. This device 1 comprises a primary conductor 2 having a general U-shape, said primary conductor comprising a core 16 substantially circular in shape centred on an axis C, said central axis, and two branches, said first 19 and second 20 branches and a secondary winding 6 sensitive to a magnetic field, said secondary winding being disposed between said first 19 and second 20 branch of said primary conductor 2. Said primary conductor 2 is a flat profile folded in a U, said first branch 19 exhibiting torsion 13 of an angle of 90.degree. according to a first direction of torsion and said second branch 20 exhibiting torsion 12 according to an angle of 90.degree. along a second direction of torsion.
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